Effect of corrosion pits on fatigue life and crack initiation

IR > 石油化工学院

	Effect of corrosion pits on fatigue life and crack initiation
	Zhang, Xin-Yan 1; Li, Shu-Xin 1; Liang, Rui1 ; Akid, R.2
	2013
会议名称	13th International Conference on Fracture 2013, ICF 2013
会议录名称	13th International Conference on Fracture 2013, ICF 2013
卷号	2
页码	1667-1675
会议日期	June 16, 2013 - June 21, 2013
会议地点	Beijing, China
出版者	Chinese Society of Theoretical and Applied Mechanics
摘要	Corrosion fatigue is identified as one of the main failure mechanism for structures working in corrosive environment. The existing study on pit corrosion showed that cracks do not necessarily initiate from the bottom of the pit. Where the crack initiate from pit depends on the pit shape (aspect ratio), loading and the corrosive environment. In this study, firstly, the corrosion pit development in size and shape and its effect on fatigue life were reviewed. Fatigue tests were conducted on pre-pitted and smooth samples to further investigate the pit effect. Then various aspect ratios of pits were modeled to calculate the SCF in a round bar under tension and bending loadings. In addition, the SCF of a wide range of aspect ratios of pits were calculated, by which it is expected to offer the engineering practice and researchers convenience to find SCF value.
关键词	Aspect ratio Corrosion fatigue Failure (mechanical) Fatigue testing Pitting Stress concentration Bending loading Corrosion pits Corrosive environment Engineering practices Failure mechanism Pit corrosion Size and shape Stress concentration factors
收录类别	EI
语种	英语
EI入藏号	20141717628436
EI主题词	Cracks
来源库	Compendex
分类代码	539.1 Metals Corrosion
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/117860
专题	石油化工学院
作者单位	1.School of PetroChemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; 2.Corrosion and Protection Centre, School of Materials, University of Manchester, Manchester M13 9PL, United Kingdom
第一作者单位	兰州理工大学
推荐引用方式 GB/T 7714	Zhang, Xin-Yan,Li, Shu-Xin,Liang, Rui,et al. Effect of corrosion pits on fatigue life and crack initiation[C]:Chinese Society of Theoretical and Applied Mechanics,2013:1667-1675.